Extracting prog: 49.117372281s Minimizing prog: 6m10.383658536s Simplifying prog options: 0s Extracting C: 1m39.142967799s Simplifying C: 8m47.203157898s extracting reproducer from 30 programs first checking the prog from the crash report single: executing 1 programs separately with timeout 30s testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_procfs-getdents64 detailed listing: executing program 0: r0 = syz_open_procfs(0x0, &(0x7f0000000080)='fd\x00') getdents64(r0, 0x0, 0x25) program crashed: Internal error in filldir64 single: successfully extracted reproducer found reproducer with 2 syscalls minimizing guilty program testing program (duration=40.692825883s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_procfs detailed listing: executing program 0: syz_open_procfs(0x0, &(0x7f0000000080)='fd\x00') program did not crash testing program (duration=40.692825883s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getdents64 detailed listing: executing program 0: getdents64(0xffffffffffffffff, 0x0, 0x25) program did not crash testing program (duration=40.692825883s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_procfs-getdents64 detailed listing: executing program 0: r0 = syz_open_procfs(0x0, 0x0) getdents64(r0, 0x0, 0x25) program did not crash extracting C reproducer testing compiled C program (duration=40.692825883s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_procfs-getdents64 program crashed: Internal error in filldir64 simplifying C reproducer testing compiled C program (duration=40.692825883s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_procfs-getdents64 program crashed: Internal error in filldir64 testing compiled C program (duration=40.692825883s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_procfs-getdents64 program crashed: Internal error in filldir64 testing compiled C program (duration=40.692825883s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_procfs-getdents64 program crashed: Internal error in filldir64 testing compiled C program (duration=40.692825883s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_procfs-getdents64 program crashed: Internal error in filldir64 testing compiled C program (duration=40.692825883s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_procfs-getdents64 program crashed: Internal error in filldir64 testing compiled C program (duration=40.692825883s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_procfs-getdents64 program crashed: Internal error in filldir64 testing compiled C program (duration=40.692825883s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_procfs-getdents64 program crashed: Internal error in filldir64 testing program (duration=40.692825883s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_procfs-getdents64 detailed listing: executing program 0: r0 = syz_open_procfs(0x0, &(0x7f0000000080)='fd\x00') getdents64(r0, 0x0, 0x25) program crashed: Internal error in filldir64 validation run: crashed=true testing program (duration=40.692825883s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_procfs-getdents64 detailed listing: executing program 0: r0 = syz_open_procfs(0x0, &(0x7f0000000080)='fd\x00') getdents64(r0, 0x0, 0x25) program crashed: Internal error in sys_mount validation run: crashed=true testing program (duration=40.692825883s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_procfs-getdents64 detailed listing: executing program 0: r0 = syz_open_procfs(0x0, &(0x7f0000000080)='fd\x00') getdents64(r0, 0x0, 0x25) program crashed: Internal error in filldir64 validation run: crashed=true reproducing took 22m46.118259044s repro crashed as (corrupted=false): Internal error: Oops - BTI: 0000000036000001 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 4227 Comm: syz.0.17 Not tainted 5.15.189-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 pstate: 42400405 (nZcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=jc) pc : filldir64+0x37c/0x9e4 fs/readdir.c:335 lr : filldir64+0x358/0x9e4 fs/readdir.c:335 sp : ffff80001fc279f0 x29: ffff80001fc27a60 x28: 0000000000000008 x27: 0000000000000800 x26: ffff80001fc27cb8 x25: 0000000000006654 x24: 0000000000000000 x23: 0000000000000001 x22: ffff8000113e6840 x21: dfff800000000000 x20: 0000000000400040 x19: 00000000fffffff2 x18: 0000000000000000 x17: ffff800016d04000 x16: ffff800008925a48 x15: ffff8000167e4500 x14: ffff0000dd3c5bc0 x13: dfff800000000000 x12: 0000000000ff0100 x11: 0000000000000000 x10: 0000000000000008 x9 : 0000ffffffffffff x8 : 0000000000000008 x7 : 0000000000000000 x6 : 0000000000000000 x5 : ffff800016ea5968 x4 : 0000000000000002 x3 : ffff8000082bfb8c x2 : 0000000000000001 x1 : 0000000000000001 x0 : 0000000000000000 Call trace: filldir64+0x37c/0x9e4 fs/readdir.c:335 dir_emit_dot include/linux/fs.h:3717 [inline] dir_emit_dots include/linux/fs.h:3728 [inline] proc_readfd_common+0x1b4/0x798 fs/proc/fd.c:250 proc_readfd+0x30/0x40 fs/proc/fd.c:284 iterate_dir+0x1f0/0x4cc fs/readdir.c:-1 __do_sys_getdents64 fs/readdir.c:369 [inline] __se_sys_getdents64 fs/readdir.c:354 [inline] __arm64_sys_getdents64+0x11c/0x340 fs/readdir.c:354 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 Code: d503229f 2a1f03f3 2a1f03e0 f8000958 (2a1303e1) ---[ end trace de8fc1a91c8198f9 ]--- ---------------- Code disassembly (best guess): 0: d503229f csdb 4: 2a1f03f3 mov w19, wzr 8: 2a1f03e0 mov w0, wzr c: f8000958 sttr x24, [x10] * 10: 2a1303e1 mov w1, w19 <-- trapping instruction final repro crashed as (corrupted=false): Internal error: Oops - BTI: 0000000036000001 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 4227 Comm: syz.0.17 Not tainted 5.15.189-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 pstate: 42400405 (nZcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=jc) pc : filldir64+0x37c/0x9e4 fs/readdir.c:335 lr : filldir64+0x358/0x9e4 fs/readdir.c:335 sp : ffff80001fc279f0 x29: ffff80001fc27a60 x28: 0000000000000008 x27: 0000000000000800 x26: ffff80001fc27cb8 x25: 0000000000006654 x24: 0000000000000000 x23: 0000000000000001 x22: ffff8000113e6840 x21: dfff800000000000 x20: 0000000000400040 x19: 00000000fffffff2 x18: 0000000000000000 x17: ffff800016d04000 x16: ffff800008925a48 x15: ffff8000167e4500 x14: ffff0000dd3c5bc0 x13: dfff800000000000 x12: 0000000000ff0100 x11: 0000000000000000 x10: 0000000000000008 x9 : 0000ffffffffffff x8 : 0000000000000008 x7 : 0000000000000000 x6 : 0000000000000000 x5 : ffff800016ea5968 x4 : 0000000000000002 x3 : ffff8000082bfb8c x2 : 0000000000000001 x1 : 0000000000000001 x0 : 0000000000000000 Call trace: filldir64+0x37c/0x9e4 fs/readdir.c:335 dir_emit_dot include/linux/fs.h:3717 [inline] dir_emit_dots include/linux/fs.h:3728 [inline] proc_readfd_common+0x1b4/0x798 fs/proc/fd.c:250 proc_readfd+0x30/0x40 fs/proc/fd.c:284 iterate_dir+0x1f0/0x4cc fs/readdir.c:-1 __do_sys_getdents64 fs/readdir.c:369 [inline] __se_sys_getdents64 fs/readdir.c:354 [inline] __arm64_sys_getdents64+0x11c/0x340 fs/readdir.c:354 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 Code: d503229f 2a1f03f3 2a1f03e0 f8000958 (2a1303e1) ---[ end trace de8fc1a91c8198f9 ]--- ---------------- Code disassembly (best guess): 0: d503229f csdb 4: 2a1f03f3 mov w19, wzr 8: 2a1f03e0 mov w0, wzr c: f8000958 sttr x24, [x10] * 10: 2a1303e1 mov w1, w19 <-- trapping instruction